![]() If youre getting close to the advertised rated speeds, dont worry about it. ![]() the Black SN750, while the write on the Black is rated for 400MB/s faster than the Blue. Beginning with sequential read and write, the WD Blue SSD racked up the highest speeds. The WD Blue SSD performed really well on CrystalDiskMark. It measures sequential read and write performance and random read and write speeds of random 4KB and 4KB (queue depth 32) data. The real-world profile Sequential results are a little lower than both the default and peak performance results but that is due to the test being done at a QD of 1 with 1 thread, which is where most of the everyday tasks are undertaken. That Blue SN570 is actually rated for 200MB/s faster sequential reads vs. CrystalDiskMark is an easy-to-run and quick utility to use to gauge a drive’s performance. The test results from CrystalDiskMark 7 confirm the official figures for both Sequential (up to 2,400MB/s reads, 1,950MB/s writes) and 4K random (up to 410,000 IOPS reads, 405,000 IOPS writes) performance. We are also starting to test with the latest version 7 of CrystalDiskMark which has a couple of built-in profiles, Peak Performance and Real World. The WD Green SN350 comes in capacities of 240 GB, 480 GB, and 960 GB. These drives are positioned a notch below the WD Blue SN550 (mid-range), while the WD Black SN850 remains the companys current flagship client SSD product. As a comparison, I also tested a Samsung 1TB 7200rpm HD103SJ and a 2TB WD Green 5400rpm mechanical hard drive. The new SN550 drive is not only faster than the previous generation Blue SN500, but it's also faster than both versions of the WD Black SN750 drive at a fairly deep queue depth of 32 in CrystalDiskMark.Īt a QD of 1, the SN550 has a slightly faster read performance than the SN500 and both WD Black SN750's but the SN750 has slightly better write performance. Western Digital announced the new WD Green SN350 series of entry-level M.2 NVMe SSDs. I ran the WD BLUE 4TB and 1TB SSHD review samples through their paces with ATTO, AS SSD, and Crystal Disk Mark to get some metrics for comparison against the specifications. ![]() CrystalDiskMark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s. For a variety of computing applications like gaming, HD media playback, or creative software, look to WD Blue 3D NAND SATA SSDs. ![]()
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